lib/roo/formatters/matrix.rb
module Roo
module Formatters
module Matrix
# returns a matrix object from the whole sheet or a rectangular area of a sheet
def to_matrix(from_row = nil, from_column = nil, to_row = nil, to_column = nil, sheet = default_sheet)
require 'matrix'
return ::Matrix.empty unless first_row
from_row ||= first_row(sheet)
to_row ||= last_row(sheet)
from_column ||= first_column(sheet)
to_column ||= last_column(sheet)
::Matrix.rows(from_row.upto(to_row).map do |row|
from_column.upto(to_column).map do |col|
cell(row, col, sheet)
end
end)
end
end
end
end